Home / 255,938.45-383,907.60-137,446.79

Finding the Fourth Proportional to 255,938.45, 383,907.60 and 137,446.79

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Solution

The fourth proportional to 255,938.45, 383,907.60 and 137,446.79 is: 206,170.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,938.45 : 383,907.60 = 137,446.79 : x
  2. Step 2: Convert to fraction form
    255,938.45/383,907.60 = 137,446.79/x
  3. Step 3: Cross multiply
    255,938.45x = 383,907.60 × 137,446.79
  4. Step 4: Simplify right side
    255,938.45x = 52,766,865,357.07
  5. Step 5: Solve for x
    x = 52,766,865,357.07/255,938.45
  6. Step 6: Final answer
    x = 206,170.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.